I think a new set of carbs is a bit far. Besides, you've no idea if they are balanced correctly so you could have two sets of unbalanced carbs, the carbs are balanced to the engine you see and each cylinder is individual so the chances are it wont work too well for you!

J

it is a bit far i guess, how simple is a set of carb balancers to use? The concern with saying lets get the garage to sort it is its gonna start costing money...i am already in trouble with the wife as i bought the bike after too many drinks and with our second children due in july if i can get her running properly by then i know i am not going to her the last of it.

apparently i should be spending money getting prepared for the our child!!

i tried explaining this is a future classic and i could keep it for when the baby is old enough to ride but that did not go down very well

the vacuum guages themselves are simple to use, but its a pain in the ass on a vfr to balance them easily becasue of the V, you need at least a 12" flexible socket extention with an 8mm socket to be able to do the job effortlessly. Apart from that, its pretty standard stuff, maybe a long reach philips screwdriver as well,, just for ease of access (again 12").

Jody

ok iv just been watching a vid on you tube for carb balancing, the chap let the bike tick over for a min or two to get to temp, then let the bike run whilst altering the settings to get them to balance my concern is i cant even get ther to idle with out fighting her with the throttle, is it even going to be possible to balance these carbs when they must be that far out?

dont buy a another set of carbs, get your carbs balanced first, is it a posibility that ur idel screw is set to low there for the bike would not idel? when u cleaned the carbs did you take the jets out the carbs and clean them? or just clean them attached to the carbs, could posibly be a blocked jet maybe . . .
Sorry i can not be any proper help, 2 years ago i knew so much about this bike and bikes in general now i know next to nothing lol, it is slowly coming back to me though lol

all of the jets are clean, the idle has been altered to try to get her to settle down a bit when running but to no avail. My thoughts are maybe this is the reason the bike stood for four years as there was carb issues / alterations and they were never fixed.

Forgot about that bit.

You can sort of "cheat" a bit to help you out, if you take the air box off completely and then take the air box base plate off the top of the carbs, look down in to the tops of the carbs and you should see black plastic cylinders in the carbs (these are vacuum pistons, operated by the bikes "ram air" system). Gently slide this in to the carb body to reveal your main valve (forgotten its correct name). Although not techinically correct, all of these valves should be at a similar angle. Rotate your throttle to locate the linkages, and on these linkage are some small adjusters, 8mm. One of the carbs is fixed and can't be adjusted so there are only three adjusters, move the adjusters so that the angle of the valves are virtually the same according to the angle of the fixed carb. Althought this is not a proper balance it "should" make the bike idle a lot better.

Jody

funny enough i was just looking at that in the haynes manual. cylinders 1, 3 & 4 all look to have the ability to be altered where as 2 cant. so slide back the black part of the piston diaphram exposing the brass plate below and try to get them all about the same, i am assuming i need to work as cylinder no.2 as my guide as this looks to be the one that cannot be altered.

then this should give me a better chance of getting her to idle better. i have just sent an sos out to the guys i go riding with, hopefully one of them will have a set of vacuum gauges. even if she does not idle better this way am i going to be able to use the gauges to any sort of reading of the state of the balance? i dont think i will some how unless i can get the rev's to hold

I would have hoped that after doing this, it should idle a dman sight better than it currently does! If it still doesn't i would double check you havn't got a sticky float/block low running jet or blocked fuel inlet.

Although possible, it would be difficult to balance correctly with no true idle. I personally wouldn't bother until you have some sort of idle, even if its a fast idle.

Jody

Where am I going wrong!? Why haven't I got the mates selling me their NC30's for 200 quid lol